Safety gas valve



1 April 23, 1929. s. ROMAN SAFETY GAS VALVE Filed Sept. 1928 Patented Apr. 23, 1929.

j umrn-D sr-Arss sImoNnoMA m on NE vonni ivi v SAFETY" 'GAS VALVE.

Application filed September This invention 1 relatesgenerally to valves and-has moreparticular-reference to a novelsafety -gasvalve;-

' The inventioir'has'for an objectthe-provision-Iota deviceofthe-class mentioned which is; of simple durable construction, desirable in usea'ndefiic'ie'nt in action, and which can be manufactured-and soldat-a reasonable cost? Y Theinvention proposes the use of a valve bddy Witlf-a gas inlet and outlet connection andja rotatively' mounted valve, and secured onithi's bo'dyya stem body in which a stem is "rotativelyand 'slida'bly' mounted. A handle iseng'aged onthi's stem and a spring normal-- lyi1rges} thestem downwards for engaginga therefiom-into a slotin the stem body.

The valv'eian'd stem are connected by gearsofyreferen ce will be had to the following description and- I accompanying drawings, and to-tli'e appended claims in which the various novelfeatures of the invention are more particularly' set forth.

In the accompanying drawing vforming a material partofa this disclosure Fig; :11 is a fragmentary perspective view of a gas range with one valve constructed according to, this invention applied-thereon.

v "Fig. 2 is a plan view of the valve per se.

Fig'.- 3 is-a side :elevational view'thereor'. Figfl is'a similar view with a body cover thereofremove'di" I Fig. 5 is a fragmentary view,: taken onzth'e-line 5 5 of Fig.'4.-

Fig. 6 is a vice. Y P

Fig. 7 is a fragmentary vertical sectional 7 view of'a modified form of the device.

' The reference numeral 10 indicates generallya-"as rangeof any design or Con-' struction avinga gas supply pipe '11,- and burners 12- provided With-a connection pipe 13 intended to connect with a valve for oper-- horizontal sectional fragmentary rear View of the de 4, 1.928. Serial-Nox3Q3Q686:

ation thereof. 1 *A valve 14 is shown connected with the gas-supply pipe 11' andlwith conline.

. '55 nection 13. In Fig. 2 the gas supply pipe -and the connection =13are shown'in dot-dash The safety'valve'letcomprises a valve body- 15-l1aving a rotative valve 16 urged down wards upon its seat by reason of a'spring: 17

engaging against the bottom: of thebody1l5 and against the-top of a gear 18 attached onto'i The-valve bodyhas a gasin-E let l9 and a gas outlet 20. A stem body 21 isthe valve 16.

secured onto the'side' of thebody 1am made integral therewith and hasa+sten122 rota'--- tivelymounted therein and-*arrangedfor longitudinal sliding. A handle=23 is con- A gear 24-mesheswith the gear=18 and'is nected with the top end of the stem.

attached onthe bottom of the stem '22 and-a co-ax-ialspring 25 on thisstem acts between thegear 24 and the body 21 for normally urg ing the stem into a downward position. A pin 26 projects from the stem 22 and engages in a recess 27 in the top edge of the stem body- 21. Adjoining this recess'is a cam cut-out r 28. The recess 27 and the cam cut-out 28 ex-:

tend thru an angle of 90 degrees.

A cover member 29 engages over the'lower portion or" the bodies'lz") and21for covering the gears 18 andQet. The handle 26 may be drawn up against the actionof the spring 25 for moving the pin 26 from recess 27ilbut during this motion the gears 24"and18 always mesh. i

In operation-of the device the handle QS'is: first drawn upwards'for moving the-stem. 22

up against the action-ofthe spring 25 and then the handle is turned through an angle of 90 degrees for turning the steniand transmitting the motion to the valve- 16 thru the 'agency of'the gears for opening the valve. The gasis then free'to flow fromthe inlet 19 The handle 23- may be to the outlet 20. V 7 turned back throughthe- 90 degrees and the cam cut-out 28 forces the pin 26 to travel up-.

wards and then fall into the recess 27. automatically holding the handle in locked position. Attention is'ca lledthat' a person cannot accidentallystrikeagainst the handle 23 for opening the valve. This is also trueof animals accidentally handle.-

In the modified form of;

moving 1 against 1 the the invention ilthe right is reserved to all changes and modilustrated in Fig. 7, a bar is shown pivotally mounted intermediate of its ends in a hollow 3l. formed,in .the, stem, bodysgL One end oftlie bar is'pr'o'vid'ed witli 'a projecting; pin 32 engageable in an aperture 33 formed in the stem 22 for holding it against being drawn upwards. The top of thebatSOis provided with a spring 34 engaging against a serrated top side 35 of the hollow 31 for'holding the bar in whatever position-it nay be -in, The casing 29 and the body 21 are formed with apair of aligned apertures .36 .and 37 V s- Wa "bodyw h. n; inle -and ut etconnection, a rotative valve mounted therein,

communicating with a the hollow 3 1 and; dis- 1 posed directly in line with the:ba r-30. HA, hair pin or other article. may-be inserted; in the aperture 36 for forcing the spring heldf end oi the bar 30 into a new position so that the pin end of the banmoves ,to free the pin. from the aperture 33.- T hen thestem 22 may I be operated as before stated; .l/Vhen desired, the same tool-may be inserted throughthew aperture 37 for niovingthepin end of the bar 30 into locking positionagain.

-VVliile I have'shown and. escrib ed the-preferred embodiment of my invention, it is to bennderstood that I do not limit myself to the precise construction herein disclosed and fications coming within the scope ofthe invention as defined in the appended claims. Having thus described my invention, What I. claim as new, and desire to secure by United Htates Letters Patent is 2-- 1. A device of the class described, comprising a valve body With an inlet and outlet connection, a rotative valvemounted therein and having a projecting bottom end, a gear fixed thereon, a stem body member connected with the valve body, a stem with a top handle, rotatively mounted inisaid member, and having a projecting bottom end, a gear. fixed onto the stem and -meshing. with thesaid first mentioned gear, a spring for urging 1 the stem downwards, and a pin projecting from the stem and engaging in a recess formed in the said stem body, the. stem body being formed with a cam cut-out adjacent the said recess so that the stem may be manually'raised into the recess upon a turning of to free the .pin from the recess and then turned foropening the valve and allowing the pin to engage within said cam cut-out, said. cam cut-out being arranged for. guiding the pin the stem back to close the valve. t l I -.2. A device of the class described, comprising a valve body with an inlet and outlet connection, a rotative valve mounted therein,

. ur ed u on its seatb a sirin -and havin D D b a projecting bottom end, a gear fixed thereon, a stem body member connected with the. valve .body, a stem witha top handle, rotatively mounted in said member, and having a,

projecting bottom end, a gear fixed onto the stem and meshing with the. said first-mentioned gear, a spring for urging the stem downstem downwards,

wards, and a pin projecting from the stem and engaging in a recess formed in the said m. o.dy,.. he stem l-be nsi rmed w a caiii-ei ieete ie sn heisai it t e t the stem may be manually raised to free the pin fromt'he recess and then turned for opening the valve -andallowing the pin to engage ,within said cam cut-out, said cam out- 0 out being arranged for guiding the pm into tharecess upon atnrningof the stem back to close the valve.

3. ,'A device; of theclass described, comprisand having a'projecting bottom end, a gear fixed thereon, a stem body n1ember.connected.

with the valve body, .a stem with. a top handle,

rotatively mounted, in. said member, arranged 1 for longitudinal sliding and having a-proj ecting bottom end, a gear fixed onto the stem andmeshing withthe-said firstsmentioned gear, :a

a P P j t ng f th s ml andfi ge spring-for. urging the stem downwards, and,

ing in arecess formed. in the said stem body,

the stem body; being. formed with a cam cnti outradjacent the said; recess so tliat the-stem 4 may be manually raised to free the,- pin said, cam I cut-out, ,said. cam cut-out. being arfr the recess and 3 then turned for opening the valve andallowing, the pin toengagewithinranged forguiding the pin into the recess I upon a turning of the stem back, to'close the valve.

ing a valve body 'withani'nlet and outletcondevice of ,theclass described, eom p ris nection, a rotative'valve. mountedv therein and having a projecting bottom end, a gear fixed thereon, astem body member connected with thevalve body, a' stem with a ,tophandle, rotatively mounted in said member, and having a projecting bottom end, a gearfixe d onto the stem andmeshing withflthe said first-men,-

n -..g r, mean fo g ng-th s em. downwards, and a pin projectingjromthe.

stem and engaging in a-recess formediin the said stem bod'y,,t he stein body being formed with a cam cut-out adjacent the said recess so that thestemmay be-manually raised to free. the pin-fromthe recess and then; turned' for 7 opening .the valve and allowing the to engage. within said cam cut-out,. said cam cutout being arranged forguiding, the ,pin into the recess upon a turning of thmstemiback to closethe valve.

5. A device of the class described,.comprising a valve body with an inlet andbutlet connection, a rotative valve mounted there in and having a projecting bottom end, a gear fixed thereon, a stem bodygmember connected with-the valve body, a stem with a ,tophandle, rotatiyely mounted memben and having a projecting bottom end, a. gearfixed onto the stem andmeshingwith-,the. said: first-mentioned gear, a springfor urging the a pin projecting from the stem and engaging in a recess formed in the cut-out being arranged for guiding the pin said stem body, the stem body being formed into the recess upon aturning of the stem back with a cam cut-out adjacent the said recess to close the valve, and a means for locking 10 so that the stem may be manually raised to the stem against longitudinal motion.

free the pin from the recess and then turned In testimony whereof I have afiixed my for opening the valve and allowing the pin signature. 7

to engage Within said cam cut-out, said cam SIMON ROMAN. 

